Cultivator attachment.



W. R. STURGISS.

CULTIVATOR ATTACHMENT.

APPLICATION zum) MAR. 7, 1914.

1,107,864, Patented Aug'. 18, 1914,

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CULTIVATOR ATTACHMENT.

APPLICATION FILED Mum. 1914.

1,107,864. Patented Aug. 18, 19141 Z SHEETS-SHEET 2.

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STATES PATENT OFFCE..

n WILIBUR REEDRJSTURGISS, OF CONWAY, ARKANSAS, ASSIG-NOR OF ONE-HALF TO u RALPHD. WHITELuOF CONWAY," ARKANSAS.

, CULTIVATOR ATTACHMENT.

To all `tf1/5,0m it may concern Be it .known that I, VILBUR R. SrUReIss, a citizen off the United States, and a resident of Conway, in the county of` Faulkner and State of, Arkansas, haveinvented a new and useful Improvement in; C'ultivator Attachments, of which the following is a specifica: tion.

Myinvention is an improvement in cultivater attachments, and has for its object to `provide an attachment of the character specified, adapted for `attachment to` any cultivator, either walking or riding, land wherein thinning mechanism is provided, consisting of two blades, `and wherein the blades are so mounted that `they. may move toward and `from each other, and-.wherein mechanism is provided for normally pressingtheblades together to permit them to move together while thinningthe row, and wherein mechanism is provided, under the control of the operator, for movingwthe blades apart to permit certain ot the plants to remain inthe row,.the blades passing on opposite sides of the row when separated.

In the drawings 2-Figure 1 is a side view of the improvement attached to a cultivator, Fig. 2 is a top plan view `of Fig. 1, Fig. 3 is a section on the line 3--3 of Fig. l, looking in the direction of the arrows, Fig. i is a perspective view of the sectional clamp, and Fig. 5 is a section on the line 5-5 of F ig. 3, looking in the direction of the arrows adjacent to the line.

The present embodiment of the invention is shown in connection with a cultivator, consisting of an arched axle, comprising a body 1 and spindles 2, which are offset laterally and rearwardly from the body, and wheels 3 are journaled upon the spindles. The body is also provided with an upward extension 1', to which a tongue 4 is connected, by means of a bearing 5, and sleeves 6 are arranged on the body of the axle on each side of the tongue, for permitting the cultivating mechanism to be connected to the axle. Each sleeve is provided with vertically spaced laterally extending bearing lugs 7, and beams S are connected with the lugs, each beam having similarly spaced bearing lugs 9 received between the lugs 7 of the adjacent sleeve and pivoted thereto by means of a bolt 10, or the like. The cultivating blades 11 of trapezoidal shape are supported by the beams, each blade being secured to Speeicationofletters Patent.l Patentdirxllg 1S, 1914 t Application led March 7; 1914.

Serial No. 823,168.

therlowerendrof a standard 12. Theblades asshown, are concave-convex, and are arrangedwith their concave faces forwardly andupwardly. Two side edges of `each blade meet at an acute angle to form a cuttingpoint, and the adjacentedges of the bladesare straight, and they are adapted to contact under `conditions `to be later described, to form a thinning plow, for turning the soil in both directions to uproot and destroy the plantsin question. Each of the standards 12 isprovided at its upper end with a portion 13, rectangular in cross section,and the said portion of eaclrstandard passes through a similarly shaped opening in a `lug la, extending laterally from a sectional block 15, which is mounted to slide on the adjacent beam. The blades are connected to thestandards as shown in Fig. 5, by means of a substantially U-shaped clip 1G.

One oi the sections 17` of a bearing is se cured to the rear convex face of each blade by means of rivets 18 or the like, and the Saidsection engages the front face of the adjacent standard. The other section 19 of the bearing engages the rear face of `the standard, and the sections are clamped together on the standards,by means oi the U- shaped clip. The bearing 17 is adjustably connected to the blade, by means of the rivet 18 before mentioned,` and a bolt 20. The

blade is mounted to swing on the rivet 18,

and the bolt passes through an opening in the blade and through an are-shaped slot 21, in the bearing section, and is engaged by a nut 22 on the rear face of the bearing section. The said section extends below the lower end of the post and it will be obvious that when the nut 22 is loosened the lower end of the blade may be swung in either clirection with respect to the post.

Handles 23 are provided for controlling the movement oi the beams, the said handles being secured to the rear ends of the beams, as shown. A coil spring 24 is arranged between the beams at the blades, the said spring being of arc-shape as shown, and having one end connected to each beam. Each end of the spring lits over a head 25 on a bolt 26, which is passed through an inwardly extending lug 27 on one of the sec i or" each block is mounted on the outer side. The sections are held together by means of a bolt and nut 31, the bolt passing through depending lugs 32 on the sections and being engaged by the nut to clamp the sections 0n the beam. The lower ends of the bolts 26- are engaged h nuts 33, and a pin 34 is passed through each head for engagement by the adjacent end of the spring. The spring tends to take the shape indicated in dotted lines in Fig. 3, and when in this position the beams and the handles will occupy the dotted line position of Fig. 2, and the blades will take the position shown in dotted lines in Figs. 2 and et, that is, with their adjacent edges in contact. When so arranged, the blades constitute a plow which will throw the soil in both directions.

The operation of the device is as follows rlhe cultivator is drawn astride the ro-w with the blades, the handles and the beams in the dotted line position or" F ig. 2. rThe blades follow up the row, throwing the soil in both directions and uprooting or cutting oii the plants. /Vhenever it is desired to leave a plant or plants standing the operator separates the handles into the full line posi tion of Fig. 2, thusseparating the blades, which now travel at the sides of the row, so that they do not disturb the plants which it is desired to leave in the row.

I claim l. A device of the character specified,

comprising in combination with a wheel supported cultivator frame, of beams pivoted to the frame at their front ends to swing laterally on vertical axes, a handle connected to the rear of each beam, a standard adjustably connected with each beam, a

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,-

Washington, D. C.

each other, normally active means for pressing the rear ends of the beams together, a

blade supported below eachbeam and adjust-able with respect to the beam, said blades being adapted to abut at their inner edges when the beams are pressed together to form a turning plow for throwing the soil in both directions from the abutting edges of the blade.

3. In a device of 4the character specified, cultivating blades adapted to abut at their inner edges to form a turning plow for throwing the soil in opposite directions from the'abutting edges of the blades, means for supporting the blades for movement toward and from each other, and resilient means normally acting to move the blades apart, said last named means comprising a coil spring, and a support for each blade, the spring being arched and having its ends connected with the adjacent supports.

E. W. GARDNER, R. DplWHrrn. 

